class Father{
    private static String name = "zhangjun";
    private static int age = 50;

    public Father(String name, int age) {
        Father.name = name;
        Father.age = age;
    }

    public static class Child{
        public void introFather() {
            System.out.println("My father's name：" + name);
            System.out.println("My father's age：" + age);
        }

    }
}

public class Test {
    public static void main(String[] args) {
        Father.Child child = new Father.Child();
        child.introFather();
    }
}